Adjustably-mounted swivel-roller.



T. W. DOOLITTLE, G. S. WINSOR & C. H. VERGASON. ADJUSTABLY MOUNTED SWIVEL ROLLER. APPLICATION FILED DEC. 9, 1912.

1,077,906. Pat ented Nov. 4, 1913.

E A\Q E v I I 1%. WM W I BY /WTORNEY COLUMBIA PLANOGRAPH C(I.,\\'ASHINGTON, B4 c.

UNITED STATES PATENT OFFICE.

TRACY W. DOOLITT LE, CLIFFORD S. WINSOR, AND CHARLES H. VERGASON', OF

' BINGHAMTON, NEW YORK.

ADJ USTABLY-MOUNTED SWIVEL-ROLLER.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed. December 9, 1912. Serial No. 735,764.

To all whom it may concern:

Be it known that we, TRACY W. DooLrr- TLE, CLIFFORD S. WINSOR, and CHARLES H. VnReAsoN, respectively citizens of the United .States, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Adjustably-Mounted Swivel-Rollers; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in adjustable swivel rollers for attachment to door and window openings for loading and unloading lumber, etc., and the object in view is to generally improve upon and render more eflicient apparatus of this nature.

The invention comprises various details of construction and combinations and arrangements of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the ap ended claim.

ur invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation showing the device positioned within a door opening and before being fastened to the opposite sides of the opening. Fig. 2 is a view in elevation showing the two bars pivoted together and before being pushed down to horizontal positions. Fig. 3 is a transverse sectional view through the jambs of doors and showing in top plan view the bars held in engagement with the jambs of the door, and Fig. 4B is an enlarged view, partially in section and partially in elevation, through the bars and the means for holding the swivel yoke upon which the roller is mounted.

Reference now being had to the details of the drawings by letter, A and B designate two bars, preferably of metal and angular in cross section and which are provided with series of perforations 0 through which a pivotal pin D ma be passed to form a hinged connection etween the two bars. One of the bars is provided with a hook C projecting from the upper edge thereof and adapted to engage over the upper edge of the other bar when the two are adjusted in horizontal positions. By the provision of the hook C, which is carried by the bar A and hooks over the upper edge of the bar 13 when the two bars are in the positions shown in Fig. 1, further downward movements of the bars will be prevented, while the springs D at the ends of the bars will securely bite into the jambs of the door way and form means for supporting the bars. are fastened to the outer end of each bar and which springs are preferably curved with bluntly sharpened edges adapted to frictionally engage the side of the door or window Springs D a opening in which the bars are to be held and ed for the reception of the bolt F which passes through the bearing member F, which latter has a recessed head F in which the swiveled bearing member F is seatedand which carries the yoke H, in the arms of which the pintlesl of the rollers 1 are journaled. A hand wheel K is provided with a hub portion, interiorly threaded and is adapted to bear against the under surface of the angle bar A, forming a means cooperat ing with the swiveled member F to hold the yoke H in an adjusted position by friction.

By the provision of an apparatus as shown and described, it will be noted that the bars may be adjusted and securely held to the sides of door or window openings of various widths. The roller being swiveled would permit the lumber or other objects resting thereon to be passed through the opening at difierent angles thereto.

What we claim to be new is A11 adjust-able swivel roller for loadingand unloading lumber through door and window openings comprising two bars adjustably pivoted together, a hinge fixed to one bar and adapted to engage over the top of the other to hold the bars with their opposite edges flush with each other, springs fastened to the ends of the bars and having laterally extending portions which are curved, the ends of the springs adapted to frictionally engage the edges of the openings in which the apparatus is held, one of said bars adapted to heal-against the under surface of having an openlng, a swlveled bearing me1nthe bar, as set forth. ber havlng a shank portlon resting upon the In testimony whereof we hereunto affix 15 apertured bar and provided with a central' our signatures in the presence of two Wit- 5 aperture reglstering with said opening, the nesses.

upper portion of said swiveled member hay; 7 TRACY W. DOOLITTLE. ing a recess with a tapering wall, a bracket CLIFFORD S. WINSOR. member, a roller carried thereby, a pin CHAR-LES H. VERGASON.

passing through said bracket member and 10 swiveled bearing and the opening in said \Vitnesses:

bar, the end of said pin being threaded, and WM. E. WAYMAN,

a wheel fitted to said threaded end and r A. M. BURGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

7 Washington, I). G. d V 

